Electric contact zetio



Feb. 26 1924. 1 1,485,191

' A.KRAUSS ELECTRIC CONTACT DEVICE Filed Aug. 50 1917 warm: R flan/SS an warms/ supporting the rigid interrupter lever for w deflection from and to its normal position in Patented Feb. 26, 1924.

UNITED STATES PA TEN"? UFFl-(IE.

ADOLF KRAUSS. 0F CANNSTATT. GERMANY, ASSIGNOR, I812 MESNE AS3IGEMENTS, TO

0]? NEW YORK Application filed August to, I

To a]! whom it may concern:

Belt knownthet L'ADOLF Item/'55s a sub ject of the German Emperor. residing at and whose postofiice address is Cannstatt, Bryce slrasse 8, Germany, have inflected certain new and useful Improvements in Electric Contact Devices; and I do hereby declare the following to be a full, clear and exact description of. the intention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention' relates to electric contact devices and more particularly to mechanical interrupters -for opening til closing the circuit of aueleotric ignition system associated! with an internal combustion engine; and the object of the invention is to provide an electric mntact t evico of this kind of superior construction a l efliciency.

In accordance with the invention, the mechanical interrupter has two separate a1 independent springs or spring systems, one

cooperation with the stationary element, and the other actin as '8, supplemental spring continually-remsting the deflection of the.

lever from its normal position By thus providing clifierent springs for these pun poses, the possibility of breakage and weak ening of tie springs is minimized 1106 the operation. of the interrupter is improvedv Preferably, the supporting spring is at tached at both ends to the defiecte'ble lever and is fastened intermediate of its ends to a bearing, while the supplemental spring is attached. at one end to the lever and star near the other end to asecond hearing, -,lh.e supplemental spring may project beyond its bearing into eo operation "ith the free wi l of the interrupter lever to serve as a resi i out stop therefor, or a separate spring pro jecting from. the hearing may be provided for this purpose In the accoi'n'panying drawings illustret- 111g several embodiments of my invention. F igs. 1, 3, 5 and 7 are plan views of modified forms of inecimn'ical interrupters; and Figs. 2, 4, 6 and. 8 are cross sections thereof,

In the modification shown in Figs. 1 anti 2, a is the interrupter disc, and & is'tne stat-- tional y contact supported by the insulated block 0. The I'l."i(l interrupter lever 9 car-- tucked at one fiber clock s, end to the Marin wove g d ng It,

: We Emmet by p x no curl to t o and is 1th.

at both ends t since it latzon for the pose Y Ti. A CQRYORATION .i'termecliate gt mounted on the ll spring .12 '13 at close to the l its outer wing projects bea. resilient ougli hol'ci o, cm ymg st eted .1 t 5 g1 flmening screw;

screw tim ea-tied not i; l g;- e' torough the inmcot with. s out p; rietter to spr ng 7'' tight.

L, the so cw "Z and 8 filmed :1 position tetwceo it a .d the tomcat mtc tile is;

sleeve 4:, so titan-t heir;

cdiment shown in eocem fires the sleeve is o to grip the and the beeromtwn by .2; the

5 mail 6, moored or hearing a7 ween it and,

the spring al the screw :11 eccentric at its two ends oegzirin r and the inbe provided spring 7 ng Z in various Hing it by a perfo-- B providing a plufor supporting the for deflection from osition. and {L supplereeisting the deflection its normal position. the ted between the springs in that the life and reliability er increaswi,

described my invention -cel interrnpten'a rigid 3 spring attached at both a bearing gripping the aces of the spring to support or deiiection from and to it nornd a. supplemental spring e deflection of the norm poeition. -icai interrupter, a rigid an iinperforate spring at (ls to the iever, a. bearing :ijch the imperforate spring is attached to support the lever for deflection from and to a normal position, and a supplemental spring continually resisting the deflection of the lever from said normal position' 3. in a mechanical interrupter, a rigid interrnpter lever, a spring attached at both ends to the lever, a hearing gripping opposite surfaces of the spring intermediate the ends thereof for supporting the lever for deflection from and to a normal position, and a suppiementai spring attached at one end o the lever and fastened to :1 second bear- ;5 for resisting the defle tion of the lever from said normal position.

4. In a mechanical interrupter, a rigid interrupter lever, a spring attached at both ends to the lever, a bearing having a tapered pin wedging the spring in position for deflection of the lever from and to a normal position, and a, supplemental spring resisting the deflection of the lever from said normal position. i

In testimony whereof I afiix my sign!- ture, in presence of two witnesses.

ADoLr KRAUSS.

Witnesses PAUL Woumm, Anon 

